SYNTHESIS AT AMBIENT PRESSURE AND SUPERCONDUCTIVITY OF Hg-DOPED TI-BASED DOUBLE [(T1, Hg)-O]-LAYERED CDPHATES
CHEN ZU-YAO (陈祖耀)ab, WEI QIN-QIAO (魏青桥)a, CAO GUANG-HAN (曹光旱)a, QIAN YI-TAI (钱逸泰)ab, ZHANG YONG-JIAN (张永健)c, WANG CHENG-YOU (汪成友)c, WANG NAN-LING (王楠林)c, CAO LIE-ZHAO (曹烈兆)c, CHEN ZHAO-JIA (陈兆甲)c
a Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China; b Laboratory of Structure Research, University of Science and Technology of China, Academia Sinica, Hefei 230026, China; c Department of Physics, University of Science and Technology of China, Hefei 230026, China
Abstract The Hg-doped T1-based 2201 and 2212 phase layered cuprates have been successfully syn-thesized at ambient pressure and identified by X-ray powder diffraction and electron diffraction analysis. Compared with pure T1-based 2212 phase compound, there are indications that the corresponding Hg-doped T1-based compound (T11.8Hg0.2)Ba2CaCu2Oz exhibits much higher Tc (> 132K).
Received: 09 December 1994
Accepted manuscript online:
PACS:
81.20.-n
(Methods of materials synthesis and materials processing)
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